NTN - Large Bearings

Angular Contact Ball Bearings SingleDuplex
B
2B
2B
r
r1
ra
r
r
ra
D
d
Da
da
d 340480mm
a
single
a
back-to-back
arrangement
(DB)
a
face-to-face
arrangement
(DF)
Boundary dimensions contact Basic load ratings Bearing Drawing 1 Load Mass
angle dynamic static dynamic static numbers No. center
mm single single single
kN kgf mm kg
d D B C r s min 2 r ls min
2
C r C or C r C or a (approx.)
340
360
380
400
420
440
460
470
460 56 3 1.1 30 345 575 35,000 59,000 7968 A 143.5 26.0
479.5 65 4 2 30 395 680 40,500 69,500 SF6807 A 151 36.7
520 82 5 2 30 520 905 53,000 92,500 7068 A 165 61.1
620 92 5 2 30 650 1,200 66,500 122,000 7268 A 184.5 127
440 38 2.1 1.1 30 226 365 23,100 37,000 7872 A 134.5 11.9
480 56 3 1.1 30 350 595 35,500 60,500 7972 A 149.5 27.3
509.5 70 5 2 40 390 685 40,000 69,500 SF7203 A 217.5 45
540 82 5 2 30 530 960 54,500 98,000 7072 A 171 63.4
650 95 6 3 30 670 1,280 68,500 130,000 7272 A 193.5 143
480 46 2.1 1.1 30 281 475 28,700 48,500 7876 A 147 19.5
519.5 65 4 2 40 345 610 35,500 62,500 SF7603 A 221.5 41.3
520 65 4 1.5 30 390 700 40,000 71,000 7976 A 162.5 39.6
540 164 4 2 40 440 810 45,000 83,000 SF7601 A 234 61
560 82 5 2 30 545 1,010 55,500 103,000 7076 A 176.5 66.3
500 46 2.1 1.1 30 287 500 29,300 51,000 7880 A 153 20.4
540 65 4 1.5 30 395 720 40,000 73,500 7980 A 168 41
600 90 5 2 30 615 1,180 63,000 121,000 7080 A 189.5 86.1
520 46 2.1 1.1 30 310 555 31,500 56,500 7884 A 158.5 21.1
560 65 4 1.5 30 410 765 41,500 78,000 7984 A 174 42.8
620 90 5 2 30 630 1,250 64,500 127,000 7084 A 195 89.7
540 46 2.1 1.1 30 310 565 31,500 58,000 7888 A 164.5 22
600 74 4 1.5 30 445 860 45,500 87,500 7988 A 187 59.3
650 94 6 3 30 645 1,310 65,500 134,000 7088 A 204.5 103
540 40 2.1 1.1 30 249 455 25,400 46,000 SF9211 A 164.5 15.8
580 56 3 1.1 30 380 725 39,000 74,000 7892 A 178 33.5
620 74 4 1.5 30 450 885 46,000 90,000 7992 A 193 61.6
680 100 6 3 30 720 1,510 73,500 154,000 7092 A 214.5 119
570 50 2.1 1.1 30 320 605 32,500 62,000 SF9404 A 175 25.7
480
600 56 3 1.1 30 390 760 40,000 77,500 7896 A 184 34.9
650 78 5 2 30 530 1,090 54,000 111,000 7996 A 202 71.8
700 100 6 3 30 715 1,520 73,000 155,000 7096 A 220.5 123
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-28